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authorHugh Dickins <hughd@google.com>2012-01-10 15:08:33 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-10 16:30:46 -0800
commit043bcbe5ec51e0478ef2b44acef17193e01d7f70 (patch)
tree4b93556acfdd790ea3e85ed60240134bd06c0d1b /mm/vmscan.c
parentfaed836a2371a96901057f310e436a09eded94fd (diff)
mm: test PageSwapBacked in lumpy reclaim
Lumpy reclaim does well to stop at a PageAnon when there's no swap, but better is to stop at any PageSwapBacked, which includes shmem/tmpfs too. Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
-rw-r--r--mm/vmscan.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index b935e6f0d69..8a4e767fb8a 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1166,7 +1166,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
* anon page which don't already have a swap slot is
* pointless.
*/
- if (nr_swap_pages <= 0 && PageAnon(cursor_page) &&
+ if (nr_swap_pages <= 0 && PageSwapBacked(cursor_page) &&
!PageSwapCache(cursor_page))
break;